Endless screen for gate-houses.



mmm siem. as; man;

, a, E wmmv. ENDLESSSCEEH FR GATE HUSES;

(Application ledifune 6, 1900.)

me' mam.) v 1 f, m3 f WITNESSES Nrrso STATES erster" trios',

mortes n. WHITNEY, or sTAMroRn. -ooNNnc'rioU'r "ENDLESS som-:EN FOR Y"GATE-trousse.

YEUIFICATION forming peri: of Letters Ifatent No. 658,196, dated September 18, 19h-0. Application filed Tune B, 190D. Serial No. 19.304:A (No model.)

To LIZ wk om, it may concern:

nei-tizen o the United Steies,residin at Stemvford, county of Fairfield, State of Connecticut, have ,invented n new and useful Endless Screen for Gste-'Houses, of which the following is e specification. My invention is applicable to. the' geteliouses of Waterworkssystems and to races, slulces, and waterways generally, in which it may be required to screen the water-4'. e., to check vegetable and other matter that may be floating on the surface er eerried along by the current beneath the surface, but. without tiltering' the water. In weterworks systems, foi-exemple, it has been common to provide removable screens, which in many instances required biting up a. number of times s day for the purpose of cleaning, efter which the screens had to be let down to place again, 'the' ope-ration of lifting end replacing the screens. requiring quites little time and `the use-of considerable power, either manuel, or mechanical, depending, of course, upon lthe size ofthe waterway and the construction ofthe screen. This practice requires, furthermore,A either that the water be shut off when the, screen is lifted or else that unscrcened water heellowed' to pass'freely while the screen is lifted for the purpose of being cleaned. ln order to overcome Vthese dilliculties, I have devised e novel endless screen thstmay he shifted as often es may be desired by e singie person usingl but little manuel power, so that a fresh portion of the screen maybe placed i n use, and liu\.1 e,'t`uijthermore, provided means whereby the portionofthe screen last in use will be cleaned 'by the operation. of shifting it, no stoppage of the weitet" or 're rnovnl of'the screen being,v necessary during the life oi' the parts. In the :recompztnyingdrnwingsfortning part of this speciiiostion, similnr reference characters are used in `the several views to dsignnte the parte.

Figure l is :tu elevation of inynovel screen in operative position; Fi'gfl, :i vievr, partly in end clevution end psrtlyinsection, ou the line 2 2in Fig. l; and Fig. 3is e plen view, the

screen being partly broken away to show the upper drum by whichit is carried.

and 22 denotes a frame adapted to slide ve| ticnlly in ways 23, rigidlysecured to thewnlls.

24 (see dotted lines in vFigs. 1 and 2) d`enotes brackets rigidly secured to the freine neer the lower end thereof, and 25 denotesn.

jourmtled in lower drum, whose shaft 2Q is said brackets.

27 denotes brackets Vrigidly securedto the upper end of the frame and extending npward therefrom, and 2S denotes a shaft journaled in said brackets and which carries nn upper drum 29, s gear-wheel 250 outside of one of the brsckets,a11d a' crank 3l for convenience Iin operation. The drums are both provided nt both edges with recesses 3;! and with sprocket- -t-eeth 33, which rise frolnthe bases of the: re-` cesses and extend 11o-approximately the height of the bodies of the drums. 1

34 denotes sprocket-chains.which extend:

from dru in to drum, pessingoverthesprocketf teeth onA the respective drums, the recesses receiving'the chains, which lie approximately Hush with the surface of the drums.

' 35 denotcsen endless screen, ordinarily made of wire-,petting of any Vrequired degree of neness, which is Secured to the sprocket- 20 denotes a waterway, 21 the Wallsthereof,A

sis

chains in such a manneres to be carried along tom of theopening in the frame to insure that the screen will pass freely and Without'contact with-thc freine. This sinnll portionof opening 3G l preferably close entirely by a ets 3S) on the outer side of the freine near the bottom. This roller lies in contact with .the

scrcen'zind czrrried thereby when' lliehitter' f is moved, the current of witter passing through thev waterway acting to hold the roller closely against .the freine and the screen; so that it will wholly close the opening between them.

' lo denotes a'rotsry brush carried by :t 'shaft' 41, journnlcd nt the upper'ends'of Vbrackets :17. Shaft-4l also carries s'gear-whel 42, which meshes with gear-wheel 30 on shaft 28,

shifting the screen, thebrush will be rotated ICO it passesunder it. I preferably, s shown in the drawings, make the gear-wheel 4:2 upon the brush-shaft'smaller than 4the gear-wheel 80, so that the brush will move much' faster than the screen. f

The operation of my novel screen is so 0b'- vious as to hardly require description. It is simply necessary'in use to move the screen sumciently to place a clean portion 'thereof rso ing the portion last in use requiring but a momentis qtime and being performed easily by ono person.

Having' thus described my invention, I claim-if 1. The combination with the walls of a. waterway a'nd a frame 'adapted to slide vertically insaid waterway and having an opening through it, lof drums journaled upon said frame and au endless 'screen carried by the drums' and coverin the opening.

2. The combination with-the walls of a waterway and a frame adapted to slide vertically yin said waterwa and having an opening through it, of dfnms journaled upon said 'frame,an endless screen carried by said drumsand a rotary bru'snV actuated from' one of the P suertes drums and acting to clean the screen when the drums are rotated. 1

3. The combintion with a frame having an opening through it'rotdruns journaled upon said frame, an endless'fsoreeunarried'by said drums and a. swinging roller-which engages both the screen and the frame atthe lower end of the opening..

4. The combination withaframe having an opening through it and drums journaled upon said frame, said drums having recesses at their edges end eprooketwteenh,. of .sprocketchai ns lying in the recesses and engaging the sprocket-teeth and an endless screen carried by the sprocket-chains.

5. The combination with a frame having an opening through it and drums jou rnaled epoxi; said frame, said drums being provided Wifi/1j;Y lrecesses at their edges and sprocket-teethiin said recesses and one of said drums carryinga gear-wheel, of sprocket-chains lying in the recesses and engaging the sprocket-teeth, an endless screen carried by the sprockeifchains and a rotary brush having a gear-wheel engaging the gear-wheel upon one of the drums, whereby as the chain is moved by rotation of the drums the brush will also be rotated and will clean the screen.

In testimony'whereof I nfllx my signature in presence of two witnesses.

. GEORGE E. WHITNEY. Witnesses:

ROBERT A. Ross,

A. Eems-m351- 

